Preheat the oven to 400 degrees.
Cut the acorn squash in half and remove the seeds. Slice each half into 1-2 inch thick wedges. Place the wedges on a baking tray (use a bit of cooking spray or a silicone baking mat or parchment paper to prevent sticking). Sprinkle with sea salt and pepper.
Roast the squash for 25-30 minutes until you can easily pierce the flesh with a fork. Flipping once half-way through cooking. Once cooked, let sit on the pan until cool enough to handle at which point, peel the skin away from the flesh and discard. Chop each wedge into chunks and set aside.
While the squash is roasting, prepare the farro according to package directions. If you bought bulk farro, see post above for cooking instructions.
To make the tahini dressing, whisk the ingredients together in a jar or dish until smooth and creamy. Adding more water slowly, if needed, to adjust the consistency.
To assemble the salad, prepare serving dishes and start by adding a couple big handfuls of mixed greens to each plate or bowl. Top each serving with equal amounts of the squash, cooked farro, pomegranate and sliced apple. Drizzle each salad with desired amount of dressing and top with a sprinkle of pecans or walnuts, if using.